WOULD YOU KNOW what to do if a patient were admitted to your medical-surgical unit with an automatic wearable cardioverter defibrillator (WCD)? We didn't either. The device has been FDA-approved since 2002, but we and our coworkers had never seen a patient wearing a WCD until Mr. Jones arrived in our unit. In this article we'll explain what we learned about the device and what you should know if you find yourself caring for a similar patient.